Card feeding means



Aug. 3, 1926.V 1,594,883

A. W. HOLMBERG ET AL CARD FEEDING MEANS Filed Jan. 24, 1923 6 sheetsheet 1 Aug. 3 1926. 1,594,883

l A. w. HOLMBERG ET AL CARD FEEDING MEANS Filed Jan. 24, 1923 5 Sheets-Shea?I 2 Aug. 3, 1926. l 1,-5942583 A. W. HOLMBERG ET AL CARD FEED NG MEANS Filed Jan. 24, 1923 G Sheets-Sheet 5 Aug.'3 19,26. I 1,594,883

A, w. HOLMBERG ETAL v `CARD FEEDING MEANS Filed Jan. 24. 1923 6 Sheets-Sheet 5 llllllllllfnfg'llll Aug.` 3', 1926 1,594,883

Y A. w. HOLMBERG ET A1.

GARD FEEDING MEANS Filed Jan. 24, 1923 e sheetssheet e Fatented Jang. 3, 1926. y n i l l unirse sraras.

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AUG-'UST W'. HOLIVIBERG AND CENTRE Vf. HGLMBERG, 0F NEW YORK,

GARD-FEEDING MEANS.

Application filed January 24, 1323. Serial No. 614,578.

The object of our invention is to provide a card feeding device which will feed cards from the bottom of a stack for any purpose, as for a cutting' machine, and a. further 0bject is to provide a means for stacking the cut cards after receiving the same.

rFliese and other objects are accomplished by our invention, one embodiment of which is hereinafter more particularly set forth.

For a more detailed description of our invention, reference is to be had to the accompanying drawings, forming a part here-L of, in whichv Figure 1 is a side elevation of a machine embodying oury invention.

Figure 2 is a detail showing rotary cutters and strippers. p

Figure 3 is a. plan view of the structure shown in Figure 1.

Figure 4 is a longitudinal section of the machine.

Figure 5 shows the mechanism for driving the rotary cutters which `is placed on the side opposite that shown in Figure 1.

Figure 6 is a front elevation of the receiving platform and its support.

Figure 7 is a diagrammatic view showing the wiring and switches for controlling the motors.

Figure 8 is an enlarged sectional view at the front of the machine, taken at the right of Figure 1. Y .y

Figure 9 is an enlarged view of a portion of the mechanism for .shifting the receiving table.

Figure 10 is a sectional view takenl on the line 10-10 of Figure 1, as indicated.

Figure 11 is a sectional view, taken on the line 11-11 of Figure 3, looking in the direction of the arrows.

Figure 12 is a similar section talren on the outside of the frame at the left of Figure 8, and looking towards the frame. y

Figure 18 is a sectional view sho-wing an end of a slide used in the mechanism shown in Figure 12.

Figure 14 shows a brake mechanism which is used on the feed roller and is a section taken on the line 14 of Figure 3, looking in the direction of the arrow.

Throughout the various views of the drawings, similar reference characters designate similar parts.

Our improved machine 1 has a frame 2 with legs 8, brackets 4'with braces 5 connecting the brackets and legs and ,also suit-.

able brackets .6 and 7 for supporting the motors which drive the machine, the motor 8, which este on the bracket 6, drive-s the feeding and cutting mechanismof the machine andthe motor 9 which rests on the bracket Vfir-ed thereon a gear 18 which meshes with a gear 19 cna shaft 20. The gear 18 also meshes with spur gears 21 an-d 22 which are 'mounted on their respective stud shafts 23 and 24 and these gears 21 and 22`mesh` with corresponding gears 25 and 26 on the shafts 27 and 28 and these gears 25 and 26 mesh with identical gears 29 and 30 .on the shafts 1 31 and 32. Allof the shafts 17, 20, 25, 27, 28, 31 and 32 are mounted in adjustable bearingsv and extendacross the entire width of the frame2. Y A

Theshafts 17 and 2O carry the rotary cut l ters 83 in the conventional manner and these cutters are placed on these shafts at` any desired intervals, according to the sizes of cards to be cut. Betweenv the sides, theV shafts 27, 28,. 81 and 32 are enlarged to form feed rollers and the shafts 27v and 31 carry the feeding tapes `34 and 35 which will be described below. rlhe `frame 2 also carries the crossings 36 and 37 on which are mounted adjustably a number of strippers 88 which are preferably made substantially as shown in Figure 4 with suitable perforations to fit the crossings, set screws 39 to hold'them in place and flared L extensions 40 which are adapted to be brought close together so as to prevent the cards from following the cutters after being severed.

, On the end remote from the gear 18, the shaft 17 carries two other gears 41 and 42,

Vthe former being a spur gear which lowers the receiving table 10 in a manner which will be described below, and the latter has a beveled gear which meshes with a corresponding beveled gear 43 on the main cam shaft 44 which is 4journaledy insuitable bearings 45 andl 46 which are mounted on the frame 2.- Adjacent to the beveled gear 48, the shaft 44 carries a cam 47 which has an indentation 48 lwhich will lower the cam roller 49 when entering therein, as is obshaft 5l carries a number of vfingers Y.53

whichcooperate with .the tapes 134 an'd 35 so Vthat momentarily and once in each revolution of the cam 47, vthese ngers are lowered so as to release the edge of a card and cause the same to be perfectlyalined before being freleased and fed to the cutters and they are raised promptly so as to release only one card at a time.

The front end of the .shaft 44, that is the end remote yfrom the gear 43, is provided with a beveled gear 5 4 which meshes with a beveled geareon a shaft 5 6 which maybe either l a studA shaft secured in the frame 2 or onzthev shaft which extends across the machine. In any event, the gear `Aruns idly o nthe shaft 56 and is fixed to a cam 57 .which engages a pintle 58 which is Amounted 4in a rack slide 59 .which has a downwardly extending eye 60 which vis connected to la coil spring `61 r.which is also connectedjtoa bracket ,4 of the machine by means of a screw 62. `This slide `50 moves in. the vdirection of its length only between suitable guides 63 on the supporting bracket G4 which is also supportedv by thebracket4 in any suitable manner.y The function of the. spring 6 1 is to forcetlie roller 58 against vthe cam 57 so that the .movements Aof the slide willat all times correspond yto the operation of the cam. The cam is so shaped as to 4give the slide aback andforth motion with the desired timing'. The slide 59 carries a rack 65 which meshes with algear 66 which vis mounted on a shaft 67 and C011- rnected theretoby meansI of a vclutch (38, as a rollerclutch so that thegear 6G can turn Vthe shaft S67 in one .directionjonly, that is when thecbar 59, is positivelyA driven by the cam157 and not on the `return movement under the influence of the spring V61. 'The shaft 67 is journaledl in the table 4 and runs across the machine. At its Afar end it is lprovided with a friction wheel69 which engages asuitable brake whichr is also secured tothe bracket 4 of thefmachine' so that this shaft 67 will not Yturn too freelj.T and thereby feed ,more than one Acard atja time. This shaft67 also carriesany desired number o f rubber covered feed rollers '171 Ywhich. feed the cards in a. mannerwhich ywill be'. described, bel-ow. The.,rollers7l are Vthe main card feeding rollers, butby themselves they `are vnot "sufficient .to function properly. )They mustmbe assisted by auxiliary rollers Vmounted anddriven in a manner which will ynow be 'deSCribed.

i "The shaft carries a sprocket wheel'73 4may be fed and cut in this machine. holdthe chain tight at all times and take ,Gllles the-.auxiliary vrollers77 a higher level than the rollers 7l, and the other is the'sprocket wheel 78 on a stud shaft 79 which extends from the weighted arm 80 which is pivoted on a shaft 8l which 1s lmounted so as to slide forward or back when vadjusted and which is held in proper position by means ofa set screw '82, the bracket '4 being slotted at 83 for this purpose. lt

will be understood that thefbarv 8l is made adjustable so that cards of differentl sizes To up slack, 'the arm' 29 is provided at its lower end Awith a weight184.

yThe shaft 8l ispreferably made so lthat it cannot turnl and it'carries uprights Swhich are adjustably' mounted thereon and l,provided in any suitable number, [four being shown in'Figur'e and these uprights carry ladjustable bearings in whiclrth'eshaft 7 6 is' journaled. 'Some `of thesej uprights 85,

have the end uprights carry guides-.87 which hold the cards`72`-in alignment. V'An auxiliary'guide 88 may also be supplied tol force "these cardsrearward, as shownin Figure'4.

AThe rear edges of the cards 72 engage the uprights 89 which'are slidably mounted in suitable frames 90V and provided'with 1aldjustablescrews '91 which arevery carefully 'made and adapted to engage grooves in the slides 89 so that4 by turning thescrews 91 it is'possible to obtain a very fine adjustment between the lower edges of the guides 89 and the periphery of the rollers 71 wil-rich are/immediately beneath the same. `This adjustment lnustb'e within oneethousandth ofan inch so that only one card 72 canpass Afrom the stackjwhen the apparatus functions ina manner which vwill be ydescribed below. Each bracket 90 is slidably mountedon a1bar-92 supported from uprights 93 atl each bracket14 and, journaled in suitable bearings beneath the u-'prights 493, are the roller shafts 94 and 95respectively which carry the bands 34 and 35, the bands 34connectingthe rollers 8l and 94 andl the lbands 35 Vconnecting' the rollers 27 and 95. The lower .run of the-bands support an idler roller' v9G mounted on ashaft v97 which is secured to the swinging arms 98 ywhich in turn are lmounted soV as to swing on the shaft 5G. Tomake vthe roller 96 more effective, the arms 9 8'are provided with weights 99'which give the desiredv tension.

vrUien the cards pass from the' st acktov Ythe ingers by means of the bands'34' and they are alined and then lin nnediately released and passed through'the cutters 33 and are then caught by the rollers 'SQand 28 and depositedon the table 10er on other cards already on the table 10. If the table keo 10 were too low these cards would not stack, but would lfall irregularly. From this, it is obvious that if the 'cards are to be properly stacked, the table 10 must be lowered to correspond to the cards out. Mechanism for lowering the table so as to keep this right relation will now be described..

The gear 41 meshes with a corresponding' gear which turns on a stud shaft 101 and this gear 100 carries an adjustably mounted crank pin 102 which is pivotally connected toca link 103 which at its upper end is pivotally connected toa second link 104 (see Figure 9) which is piveted on a stud shaft 105 which also carries a ratchet wheel 106 which is adapted to be driven by a sprino' pressed pawl107 in the conventional manner. This pawl 107 may be raised or lowered manually by means of handle 108 which, in the mechanism shown. is thrown to the left, in Figure 9, and thereby causes a contact 109 to be lowered on another contact 110 and thereby complete an electric circuit, in a manner which will be described below. The stud shaft 105, like the stud shaft 101 is mounted from the frame 2 of the machine and the pawl mechanisin is carried entirely by the link 104.

The ratchet gear 106 is fixed to a helical. gear 111 which meshes with the corresponding helical gear 112 at the upper end of a V screw 113 and this screw carries a nut 114 which supports one end of the table 10. The other end of the table 10 is supported by a corresponding nut 115 on a screw shaft 116 which is parallel to the shaft 113 at all times. The shafts 113 and 116 are mounted at their upper ends in suitable bearings 117 and at their lower ends in bearings 118 so that at all times these shafts will remain in proper relation. At their lower ends, these shafts are provided with beveled gears 119 which mesh with corresponding beveled gears 120 on a connecting shaft 121 which is also journaled in different parts of the .bearings 118. The throw of the pawl 107 is determined by the position of the adjustable crank pin 102 and the position of this crank pin is determined by the thickness of cardboard to be cut and stacked, all the parts being calculated and adjusted so that as the gear 100 revolves, the table 10 will be lowered the thickness of a card so that each card will ride either on the table or on an other card supported by the table at the proper level so as to be stacked. l/Vhen the table 10 reaches the lower limit of its movement, it is obvious that the machine should be stopped until an attendantl can remove the cards and restore the table to its initial position. To accomplish this, the nut 115 is provided with a downwardly extending adjustable stud 122 which is adapted to engage its switch 123 at the lower limitI of its movenient and when it engages this switch, the

main circuit through the motor 8 is opened, as appears from Figurer?, which is the wiring diagram. In this view, it appears that electricity is supplied by means of thc usual conductors or lead in wires 124 and 125.

Awhich extends downwardly from the motor supporting bracket 7. After this is done and while the foot pedal 126 is depressed, the operator must close. a switch 134 and the switch between the contacts 109 and 110 and then the motor 9 will drive the shaft 121 so as to elevate the nuts 114 and 115 and this elevation will continue until a projection 4135 which rises upwardly from the nut 114,

engages the switch 13G and opens the same and thereby opens the circuit through the motor 9. The switch 134 is then opened and when the machine is started the lever 108 is thrown so as to open the circuit be* tween the parts 109 and 110 and thereby permit the machine` to function.

Operation.

In view of the foregoing, the operation of our improved machine will be readily understood. Assuming a stack of cards to be in place, as shown in Figure 1, and the table 10 at the proper level, the machine is started by closing a switch, as the switch 123, and then the knives begin to rotate and the bands 34 and 35 to move and the alining lingers 53 to rise and fall and the rollers 71 and 77 rotate always in the same direction, but intermittently and according to the shape of the cam 57, that is about fifty per cent of the time. As these rollers rotate, both the `front and rear of the bottom card are urged backward to the tapes 34 and 35 and this urging is suilicient to move the bottom card. Only the bottom card can move because the card immediately above it is held by the guides 89. As soon as the card above it is held by the guides 89 it is caught by the bands 34 and 35 and carried forward with a continuous pressure and as soon as it reaches the alining fingers 53, it is momentarily stopped and alined by the continuous movement of the bands 34 and 35 Vwhile it is so stopped and then it is released and it runs true to the cutters and thereafter it is released by the strippers and the rollers 32 and 28 and deposited on the table 10 or on other cards already deposited and this continues until the table 10 reaches the lower limit of its movement at which time the projection 122 opens the' switch 123. After the operator has removed the cards from the table 10he restarts'the apparatus by pressing on the foot pedal 126, and otherwise proceeding as above described. From .time totiine the operator Will renew the cards 72 .in thestacl.

lNhile rive have shown and described oue einbodin'lentot our invention, it is obvious thatit is not. restricted thereto, but that it is broad enoughto cover all structures that come Within the scope of the annexed clain'i.

Having thus described our invention7 what We cla-ini is:

In a machine of the class described, driven rollers for .supporting` rthe front and rear ends of van inclined bottoni cardso that all the other cards in-a stack aresupported-.by the bottoni card, a laterally and vertically adjustable front gate having a forwardly inclined lower end supported the thickness of a blank above theforivard roller, the rear roller being` supported for vertical and horizontal adjustment and an auxiliary;inclined Wall positioned aboveand slightly tothe rear of the highest portion ofthe rear supporting roller. Y

ln testimony whereof We have lhereunto set our hands'and seals this 19th day of January, 1923. l

' AUGUST iV. HOLMBERG. CENTRE W. I-IOLMBERG: 

